** Description changed: First boot after new install; Lubuntu 20.04 QA-test install - NOTE: I re-used partitions, /dev/sda8 (/) was empty, but /dev/sda9 (/home) contained data - sddm wasn't used as DM before Lubuntu 20.04 installs, so I doubt it's related to a conf/config issue relating to sddm. + NOTE: I re-used partitions, /dev/sda8 (/) was empty, but /dev/sda9 + (/home) contained data. sddm wasn't used as DM before Lubuntu 20.04 + installs, so I doubt it's related to a conf/config issue relating to + sddm. Description: At first boot, I expect the cursor to move around the display without bright flahes of WHITE covering parts of the screen; that are very bright/distracting (somewhat strobe like). It only has this effect when the cursor/pointer is moved at the top of the display in what I'd describe as a panel. If the cursor is over the 'top' bar I get a strobbing effect as the cursor/pointer moves. Stop moving the mouse and the effect stops, move it off the top 'panel' and it's gone too. + + The 'flash' or 'strobe' like effects covers the whole screen, and occurs when the mouse is over + - Session drop down box (not word itself, the Lubuntu drop-down bit) + - Layout - US flag drop down + - Pause/Reboot/Off icons top right. + Elsewhere on the top 'panel' and there is no effect. + + It also occurs at the left arrow near the "Chris Guiver" password area, + no issue if I move over white-grey-person-password area, just over the + "<" to the left of that box. This could be a real possibly should a + person react to 'flashes' (I'm thinking epilepsy but just a thought). + + The screen appears to flash all WHITE with a triangle pushing out from + the left (reminds me of screen tearing). I haven't noticed this before + on other boxes. + + On logging out, I get a brief strobe too before or as `ssdm` is drawn. + This could be filed again wrong package, I suspect it relates to xserver-xorg-video-radeon or something GPU related. `sudo lshw -C video` reports guiverc@d755-5-2004:~ $ sudo lshw -C video [sudo] password for guiverc: *-display:0 description: VGA compatible controller product: RV516 [Radeon X1300/X1550 Series] vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 0 bus info: pci@0000:01:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi vga_controller bus_master cap_list rom configuration: driver=radeon latency=0 resources: irq:16 memory:d0000000-dfffffff memory:fe9e0000-fe9effff ioport:dc00(size=256) memory:c0000-dffff *-display:1 UNCLAIMED description: Display controller product: RV516 [Radeon X1300/X1550 Series] (Secondary) vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 0.1 bus info: pci@0000:01:00.1 version: 00 width: 64 bits clock: 33MHz capabilities: pm pciexpress bus_master cap_list configuration: latency=0 resources: memory:fe9f0000-fe9fffff I did NOT expect two cards to be recognized? ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: sddm 0.18.1-1ubuntu2 ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18 Uname: Linux 5.4.0-14-generic x86_64 ApportVersion: 2.20.11-0ubuntu18 Architecture: amd64 CurrentDesktop: LXQt Date: Tue Mar 3 18:48:23 2020 InstallationDate: Installed on 2020-03-03 (0 days ago) InstallationMedia: Lubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200302) SourcePackage: sddm UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1865837 Title: Lubuntu 20.04 qa-test install; flashing at sddm greeter when mouse at top panel (pre-login) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sddm/+bug/1865837/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
